Answer:
Water earth fire and rain hurricanes fire tornados etc
Explanation:
There are millions of physical conditions but that's the only ones I could think of.
<span>Thousands of years of isolation between tribal groups</span>
Answer:
They both have a cell membrane, and cell organelles (nucleus, mitochondria and endoplasmic reticulum)
Explanation:
You have no choices however, A gene pool is defined as a sum total of all the genes present in an inter-breeding population at a specific time. It includes all the alleles of all the loci within the genes of a interbreeding population or species. The composition of the gene pool of a population can change with course of a time due to evolution
Answer;
-Helicase enzyme
Explanation;
-Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.
-DNA is double stranded. Enzymes that are responsible for replication of DNA can only bind to a single strand of DNA. Helicase is the enzyme that unwinds the DNA by breaking hydrogen bonds between the two strands.It forms the so called replication fork. Other proteins assist helicase to keep the strands apart as long as required for the replication process.